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首页> 外文期刊>Journal of Applied Polymer Science >Amphiphilic maleic acid copolymers as corrosion inhibitors for aluminum pigment
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Amphiphilic maleic acid copolymers as corrosion inhibitors for aluminum pigment

机译：两亲马来酸共聚物作为铝颜料的缓蚀剂

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摘要

Aluminum pigments react in aqueous alkaline media (e.g., water-borne paints) by the evolution of hydrogen. Maleic acid copolymers, which were synthesized by copolymerization of maleic acid anhydride, styrene, and acrylic esters (ethyl-, n-butyl-, n-hexyl-, n-dodecyl-, and n-octadecyl acrylate) inhibit this corrosion reaction. With the increasing chain length of the ester alcohol of the acrylate monomer, the evolved hydrogen volume decreases (i.e., the corrosion inhibiting effect increases). There seems to be a potential correlation between the number of carbon atoms of the ester alcohol of the copolymers and the evolved hydrogen volumes. With the addition of 0.5 wt % of the copolymers with n-butyl, n-hexyl, n-dodecyl-, and n-octadecyl acrylate no hydrogen evolution was observed at pH 8 within 21. days (complete corrosion inhibition). Conductivity measurements of aqueous copolymer solutions indicate that with an increasing chain length of the ester alcohol, the copolymers possibly associate by hydrophobic bonding. (C) 1998 John Wileg & Sons, Inc. [References: 12]
机译：铝颜料通过氢的释放在水性碱性介质（例如，水性涂料）中反应。通过马来酸酐，苯乙烯和丙烯酸酯（丙烯酸的丙烯酸乙酯，丙烯酸正丁酯，丙烯酸正己酯，丙烯酸十二烷基酯和丙烯酸十八烷基酯）共聚而合成的马来酸共聚物可抑制这种腐蚀反应。随着丙烯酸酯单体的酯醇的链长的增加，析出的氢量减少（即，腐蚀抑制作用增加）。共聚物的酯醇的碳原子数与所释放的氢量之间似乎存在潜在的相关性。通过添加0.5wt％的具有丙烯酸正丁酯，正己基，正十二烷基和正十八烷基丙烯酸酯的共聚物，在21天之内在pH 8下没有观察到析氢（完全腐蚀抑制）。共聚物水溶液的电导率测量表明，随着酯醇链长的增加，共聚物可能通过疏水键结合。 （C）1998 John Wileg＆Sons，Inc. [参考：12]

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